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฿3,646+ Direct flights to Seoul

This is the cheapest price on a non-stop flight to Seoul found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Seoul

Enter your travel dates to find the best prices.

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 13 March 2026.

Wed 15/403:15
DMK
-
ICN
Nonstop5h 40m
Multiple Airlines
Fri 24/411:55
ICN
-
DMK
Nonstop5h 40m
Multiple Airlines
Deal found 8/3฿6,205
Wed 1/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Mon 31/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 8/3฿6,492
Wed 15/402:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia X
Wed 22/411:55
ICN
-
DMK
Nonstop5h 40m
Thai AirAsia X
Deal found 9/3฿6,620
Wed 15/403:15
DMK
-
ICN
Nonstop5h 40m
Thai Lion Air
Fri 24/413:30
ICN
-
DMK
Nonstop5h 40m
Thai Lion Air
Deal found 8/3฿6,652
Wed 15/403:15
DMK
-
ICN
Nonstop5h 40m
Multiple Airlines
Wed 22/411:55
ICN
-
DMK
Nonstop5h 40m
Multiple Airlines
Deal found 8/3฿6,716
Fri 17/402:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia X
Fri 24/411:55
ICN
-
DMK
Nonstop5h 40m
Thai AirAsia X
Deal found 9/3฿6,780
Wed 1/703:15
DMK
-
ICN
Nonstop5h 40m
Multiple Airlines
Mon 31/812:05
ICN
-
DMK
Nonstop5h 45m
Multiple Airlines
Deal found 8/3฿6,812
Mon 24/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Fri 28/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 11/3฿6,908
Fri 24/400:55
BKK
-
ICN
Nonstop5h 35m
Jin Air
Wed 6/519:55
ICN
-
BKK
Nonstop6h 00m
Jin Air
Deal found 12/3฿6,972
Thu 7/503:15
DMK
-
ICN
Nonstop5h 40m
Thai Lion Air
Thu 14/513:30
ICN
-
DMK
Nonstop5h 40m
Thai Lion Air
Deal found 12/3฿7,036
Wed 26/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 30/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 8/3฿7,036
Sun 19/400:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Mon 27/418:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Deal found 11/3฿7,100

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Fare Finder

 
Use the slider to find non-stop flights to Seoul within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches and data was last updated on 13 March 2026.
Use the filters below to find and compare direct flights to Seoul that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Mon 31/8

12:05-15:50

Nonstop5h 45m

฿6,812
Fastest return journey

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 9/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Fri 17/7

13:30-17:10

Nonstop5h 40m

฿7,580

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 19/4

03:15-10:55

Nonstop5h 40m

Incheon Intl

Fri 24/4

13:30-17:10

Nonstop5h 40m

฿7,644

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 5/7

13:30-17:10

Nonstop5h 40m

฿7,900

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 1/7

02:25-10:00

Nonstop5h 35m

Incheon Intl

Sun 5/7

12:10-16:00

Nonstop5h 50m

฿8,347

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 9/7

02:45-10:35

Nonstop5h 50m

Incheon Intl

Sun 12/7

12:05-15:50

Nonstop5h 45m

฿8,443

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Mon 8/6

03:15-10:55

Nonstop5h 40m

Incheon Intl

Thu 11/6

12:05-15:50

Nonstop5h 45m

฿8,443

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 21/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Mon 13/7

12:05-15:50

Nonstop5h 45m

฿8,475

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 6/5

03:15-10:55

Nonstop5h 40m

Incheon Intl

Mon 11/5

13:30-17:10

Nonstop5h 40m

฿8,603

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 11/5

22:45-06:15

Nonstop5h 30m

Incheon Intl

Sun 7/6

17:15-21:10

Nonstop5h 55m

฿10,586

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 40 resultsSorted by cheapest first
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Reviews of airlines flying non-stop to Seoul

Get insights into the airlines that provide direct flights to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated 13 March 2026.
Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.5

Overall

8.4

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,202 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.5

Overall

8.4

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.5

Overall

8.4

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Airways
7.8
Good
392 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.5

Overall

8.4

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Vietjet Air
6.6
Okay
119 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Boarding

8.5

Overall

8.4

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

Find answers to frequently asked questions about direct flights to Seoul to unlock the best deals on Cheapflights.

  • How much are direct flights to Seoul?

    On average, a one-way direct flight to Seoul will cost users approximately ฿11,505. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿23,510.

  • Which airlines fly direct to Seoul?

    At the moment, Thai AirAsia X, Thai Airways, Thai Vietjet Air, AIR PREMIA, Korean Air, T'way Air, Air Busan, Jeju Air, Asiana Airlines, Eastar Jet offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.

  • What is the best time of year to fly direct to Seoul?

    If you're seeking the lowest price on a direct flight to Seoul, March is worth consideration, as prices are usually at their lowest, on average. February may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.

  • What is the most popular direct flight origin to Seoul?

    Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿25,602.

See more FAQs

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